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UR5HC418-FN PDF预览

UR5HC418-FN

更新时间: 2024-11-08 22:15:11
品牌 Logo 应用领域
商升特 - SEMTECH 微控制器和处理器外围集成电路uCs集成电路uPs集成电路编码器
页数 文件大小 规格书
14页 149K
描述
AT / PS/2 - Compatible Keyboard Encoder

UR5HC418-FN 技术参数

是否无铅: 含铅生命周期:Obsolete
零件包装代码:LCC包装说明:QCCJ,
针数:44Reach Compliance Code:unknown
HTS代码:8542.31.00.01风险等级:5.84
JESD-30 代码:S-PQCC-J44长度:16.5862 mm
端子数量:44最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:QCCJ封装形状:SQUARE
封装形式:CHIP CARRIER认证状态:Not Qualified
座面最大高度:4.57 mm最大供电电压:5.5 V
最小供电电压:4.5 V标称供电电压:5 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
宽度:16.5862 mmuPs/uCs/外围集成电路类型:MICROPROCESSOR CIRCUIT
Base Number Matches:1

UR5HC418-FN 数据手册

 浏览型号UR5HC418-FN的Datasheet PDF文件第2页浏览型号UR5HC418-FN的Datasheet PDF文件第3页浏览型号UR5HC418-FN的Datasheet PDF文件第4页浏览型号UR5HC418-FN的Datasheet PDF文件第5页浏览型号UR5HC418-FN的Datasheet PDF文件第6页浏览型号UR5HC418-FN的Datasheet PDF文件第7页 
TM  
DeskCoder UR5HC418  
AT / PS/2 - Compatible  
Keyboard Encoder  
TM  
HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODER FAMILY  
DESCRIPTION  
FEATURES  
TM  
The DeskCoder keyboard encoder  
functions as a versatile, low-power  
desktop keyboard encoder, while  
providing two bi-directional  
• Interfaces contact switch matrix  
keyboards to a BIOS-compatible  
system  
• Single IC desktop keyboard  
encoder  
• Provides interface for an external  
keyboard/keypad or other 8042-  
compatible devices  
• Implements all functions of a  
101/102/104 keyboard  
• Low-power HCMOS  
microcontroller, suitable for 3-volt  
battery-operated systems  
• Available in DIP, PLCC and QFP  
packages  
• Custom versions available in small  
or large quantities  
channels for communication with a  
BIOS-compatible system as well as  
any optional keyboard-compatible  
devices, such as a 101/102/104  
desktop keyboard, OCR, barcode  
reader, etc.  
AT / PS/2 - compatible  
TM  
The DeskCoder fully supports the  
APPLICATIONS  
IBM standard keyboard communi-  
cation protocol; each key press  
generates one of the scan codes  
designated in the IBM Technical  
Reference Manuals. The keyboard  
encoder handles the scanning,  
debounce, and encoding of 128  
keys organized on an 8 x 16 matrix.  
• Point of sales terminals  
• Public information kiosks  
• Desktop computers  
• Instrumentation  
• Industrial keyboards  
PIN ASSIGNMENTS  
In addition to the system’s keyboard  
communication port, the UR5HC418  
provides a fully functional keyboard  
input port that can be used by a  
standard 101/102/104 keyboard or  
another 8042-compatible device,  
such as an external numeric  
keypad, an OCR, or a bar-code  
reader. Input from both the matrix  
and the external device is  
6
40  
39  
1
R7  
SL  
R5  
R4  
R3  
7
RP  
KD  
KC  
EKC  
EKD  
_RESET  
_IRQ  
VX  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
VCC  
OSCI  
OSCO  
EKC1  
R7  
1
2
34 R2  
R1  
CL 12  
C0  
PLCC  
3
R0  
C8  
C9  
C10  
C1  
C2  
C3  
C4  
NL  
4
R6  
5
RP  
SL  
29  
28  
6
17  
18  
23  
multiplexed and presented to the  
system as if it were coming from a  
single source.  
KD  
R5  
7
KC  
R4  
8
EKC  
EKD  
CL  
R3  
9
R2  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
DIP  
R1  
TM  
The DeskCoder is ideal for use in  
C0  
R0  
low-power, low-cost and high-  
reliability AT / PS/2 - compatible  
keyboard designs.  
C1  
C8  
C2  
C9  
NL  
R5  
R4  
R3  
R2  
R1  
R0  
C8  
C9  
C10  
C11  
R6  
RP  
1
C3  
C10  
C11  
C12  
C13  
C14  
C15  
KD  
KC  
EKC  
EKD  
CL  
C0  
C1  
C2  
C3  
C4  
C5  
Note: A version of the IC that  
supports the PC/XT protocol is also  
available. Contact Semtech for  
more information.  
QFP  
C6  
C7  
VSS/GND  
DeskCoder and KeyCoder are trademarks of  
Semtech Corporation. All other trademarks  
belong to their respective companies.  
Copyright ©1997-2001 Semtech Corporation  
DOC5-418-DS-109  
www.semtech.com  
1

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